HONG KONG—Lenovo Group Ltd. is open to more deals and can finance another billion-dollar purchase, its chief financial officer said, even as the Chinese personal-computer maker is in the process of closing two major U.S. acquisitions valued at a combined $5.21 billion.

"If it's $10 billion it's beyond our reach, but if it's a billion-dollar deal, financially we can do it, " Wong Wai Ming said in an interview Thursday....